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Running Pace Calculator

Calculate your running pace, splits, and finish times.

100% In-Browser • Zero Uploads
No Login Required

Running & Walking Pace Calculator

Calculate running pace, race finish times, or total distance with equivalent splits for 5K, 10K, Half, and Full Marathons.

Quick Events:
Hours
Mins
Secs
Required Running Pace
5:00min / km
Per Kilometer
5:00 min/km
Per Mile
8:03 min/mi
Speed
12.00 km/h
Estimated Race Times (Riegel Endurance Formula)
1500m
6:59
1 Mile
7:31
5K
25:00
10K
52:07
10 Miles
1:26:19
Half Marathon
1:55:00
Marathon
3:59:47

About Running Pace Calculator

Find your mile or kilometer pace for 5K, 10K, half, and full marathons. Simple sports pace tool.

100% Client-Side

Your files and data are processed locally in your browser memory. Never uploaded to remote servers.

Zero Login Required

Instant access with no account, no email sign-up, no passwords, and no subscription paywalls.

Instant Speed

Powered by modern WebAssembly and native web APIs for near-instant rendering and zero latency.

Privacy Guaranteed

Zero data retention, no user tracking cookies, and GDPR/HIPAA friendly. Your data remains strictly yours.

All Devices Ready

Fully responsive on desktop, tablet, and mobile devices without installing software or extensions.

How to Use

  1. Select what you want to calculate (Pace, Time, or Distance).
  2. Enter your numbers and select units (km or miles).
  3. Review your pace, speed, and predicted race finish times.

Frequently Asked Questions